Residual lanolin hair shampoo



United States Patent RESIDUAL LANOLIN HAIR SHAMPOO Jack R. Verblen, Chicago, Ill.

No Drawing. Application June 17, 1953, Serial No. 362,409

6 Claims. (Cl. 16787) This invention relates to a unique cream-type shampoo in which a very high percentage of lanolin is incorporated. After washing and normally rinsing the hair, there remains a residual amount of lanolin very homogeneously distributed throughout the entire hair to act as a hair dressing so that the use of external greasy dressings is obviated.

The major problem in washing hair with any detergent is not merely in removing dirt and foreign material from the hair and scalp. This objective can be accomplished by the use of almost any type of wetting or foaming agent, such as ordinary soap or a synthetic detergent, foaming or non-foaming.

The real problem is to wash hair and yet have it left in a manageable condition, since washing removes not only dirt but practically all of the natural oily substances, which substances have a weighting effect on natural hair. For example, most persons, after shampooing, find their hair to be extremely dry and fluffy to the extent that there is required an application of some type of hair dressing, generally an oily substance which tends to cause the individual hairs to coalesce and thereby effect a weighting down which keeps the hair down closer to the scalp.

The application of such a dressing is never uniform and each strand of hair is not coated evenly. There are more than 100,000 hairs on the average adult human head. Therefore the difficulty of coating each strand with an oily dressing can be well realized.

Lanolin itself is an extremely good hair dressing but because of its physical nature is diflicult to apply as such into the hair.

The problem is to get enough lanolin into the hair and scalp after washing and rinsing without being messy. It is among the objects of this invention to solve this problem through a very unusual and novel process, and product. I

My invention also comprises such other objects, advantages and capabilities as will later more fully appear and which are inherently possessed by my invention.

While I have shown herein preferred formulae, compositions and embodiments of my invention, yet it is to be understood that the same are susceptible of modification and change without departing from the spirit of my invention.

The invention is designed to permit the introduction of a large amount of lanolin into a shampoo. Enough of the shampoo is used to wash the hair so that at least to 10 grams of lanolin actually is applied to the head. On lathering with water the lanolin is homogeneously distributed throughout the entire head of hair and each strand is covered with lather containing lanolin. The hair is rinsed in the usual Way and it is found that there remains evenly distributed on the hair an amount of lanolin equal to about one fifth of the original amount introduced. This residual amount of lanolin is left intimately combined with the hair and it now gives weight and adherence so that the hair compacts itself after brush- 2,756,178 Patented July 24, 1956 I ing down. A fine comb can be run through the hair without snarling proving that the hair is properly to percent) with a lathering agent such as a salt of a sulfated lauryl alcohol, without inhibiting the action of the lathering agent. This is accomplished by the introduction into the formulation of a blocking agent which greatly retards the inhibition of lanolin against a lathering agent. Such agents are high molecular weight fatty acid mono isopropanol amides.

These amides act as dispersing and coupling agents for lanolin and similar fats and protect the physical contact of the lanolin and lathering agent to such an extent that the lathering by the addition of water proceeds as if the lanolin were not present at all.

My invention for the creation of a shampoo having a large lanolin content consists of taking a lathering agent, and introducing a high molecular weight fatty acid amide from C12 to C40 so that a substantial amount of lanolin may be added to form the shampoo. Since fat generally destroys foam, and a lathering agent and lanolin are ordinarily incompatible, my introduction of the high molecular weight fatty acid amide from C12 to C40 acts as a blocking agent in that it blocks the lanolin from destroying the foaming character of the lathering agent. On the other hand it might be considered a coupling agent in the sense that it permits the two incompatibles to be brought together and still remain functionable.

In my invention I may use any suitable lathering or foaming agent, or detergent, but I prefer to use sodium lauryl sulphate. My preferred blocking or coupling agent is stearic mono isopropanol amide. My coupling or blocking agent is substantially by weight of the amount of lanolin used.

An example of my formulation is as follows:

Parts by weight Stearic mono isopropanol amide 15 Ethyl alcohol 10 Lanolin 20 Sodium lauryl sulfate 15 Water 40 Parts Stearic mono isopropanol amide 10 to 35 Ethyl alcohol 6 to 22 Lanolin 15 to 50 Sodium lauryl sulfate 15 to 40 Water 0 to 54 Having thus described my invention, I claim:

1. A latherable and residual lanolin hair shampoo having a large lanolin content consisting of a lathering agent, a monoisopropanolamine amide of a high molecular 31 weight fatty acid from 12 to 18 carbon atoms and a substantial amount of lanolin, the amount of lanolin consisting of at least 15% by weight of the shampoo, said amide acting as a blocking agent in preventing the lanolin from destroying the lathering character of the lathering agent and said amide being substantially 70% of the amount of the lanolin.

2. A latherable and residual lanolin hair shampoo having a large lanolin content consisting of 15 to 40 parts of sodium lauryl sulphate, to 35 parts of stearic mono isopropanol amide and to 50 parts of lanolin.

3..A latherable and residual lanolin hair shampoo having a large lanolin content consisting of 15 parts of sodium lauryl sulphate, 15 parts of stearic mono isopropanol amide and parts of lanolin.

4. A shampoo composition consisting of sodium lauryl sulphate, stearic mono isopropanol amide, and a substantial amount of lanolin, the amount of lanolin consisting of at least 15% by weight of the shampoo, and said amide being substantially 70% of the amount of the lanolin.

5. A composition consisting of 15 parts of stearic mono isopr opanol amide, 10 parts ethyl alcohol, 20 parts of lanolin, 15 parts of sodium lauryl sulphate and 40 parts of water.

6. A composition consisting of 10 to 35 parts of stearic mono isopropanol amide, 6 to 22 parts ethyl alcohol, 15 to parts of lanolin, 15 'to 40 parts of sodium lauryl sulphate and 40 parts of water and said amide being substantially of the amount of the lanolin.

References Cited in the file of this patent UNITED STATES PATENTS 2,061,468 Kling Nov. 17, 1936 2,383,737 Richardson Aug. 28, 1945 2,655,923 Gallenkamp Oct. 20, 1953 OTHER REFERENCES Schimmel Briefs No. 160, July 1948. Thomssen, Modern Cosmetics, 3rd ed., New York, 1947, Drug and Cosmetic Industry, page 339. 

1. A LATHERABLE AND RESIDUAL LANOLIN HAIR SHAMPOO HAVING A LARGE LANOLIN CONTENT CONSISTING OF A LATHERING AGENT, A MONOISOPROPANOLAMINE AMIDE OF A HIGH MOLECULAR WEIGHT FATTY ACID FROM 12 TO 18 CARBON ATOMS AND A SUBSTANTIAL AMOUNT OF LANOLIN, THE AMOUNT OF LANOLIN CONSISTING OF AT LEAST 15% BY WEIGHT OF THE SHAMPOO, SAID AMIDE ACTING AS A BLOCKING AGENT IN PREVENTING THE LANOLIN FROM DESTROYING THE LATHERING CHARACTER OF THE LATHERING AGENT AND SAID AMIDE BEING SUBSTANTIALLY 70% OF THE AMOUNT OF THE LANOLIN. 